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He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

What additional information could be used to prove abc =mqr using sas? check all that apply.